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   /*
    * Copyright 2016 The Netty Project
    *
    * The Netty Project licenses this file to you under the Apache License,
    * version 2.0 (the "License"); you may not use this file except in compliance
    * with the License. You may obtain a copy of the License at:
    *
    *   https://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
   * License for the specific language governing permissions and limitations
   * under the License.
   */
  package io.netty.handler.ssl;
  
  import io.netty.buffer.ByteBuf;
  import io.netty.buffer.ByteBufHolder;
  
  /**
   * A marker interface for PEM encoded values.
   */
  interface PemEncoded extends ByteBufHolder {
  
      /**
       * Returns {@code true} if the PEM encoded value is considered
       * sensitive information such as a private key.
       */
      boolean isSensitive();
  
      @Override
      PemEncoded copy();
  
      @Override
      PemEncoded duplicate();
  
      @Override
      PemEncoded retainedDuplicate();
  
      @Override
      PemEncoded replace(ByteBuf content);
  
      @Override
      PemEncoded retain();
  
      @Override
      PemEncoded retain(int increment);
  
      @Override
      PemEncoded touch();
  
      @Override
      PemEncoded touch(Object hint);
  }